News
- Physics
A clock’s accuracy may be tied to the entropy it creates
A clock made from a thin, wiggling membrane releases more entropy, or disorder, as it becomes more accurate.
- Climate
Climate change may have changed the direction of the North Pole’s drift
A mid-1990s shift in the movement of the pole was driven by glacial melt, in part caused by climate change, among other factors, a new study reports.
- Particle Physics
The thickness of lead’s neutron ‘skin’ has been precisely measured
At 0.28 trillionths of a millimeter thick, the shell of neutrons around the nucleus of an atom of lead is a bit thicker than physicists had predicted.
- Health & Medicine
COVID-19 can affect the brain. New clues hint at how
Anxiety, depression and strokes can occur after infection, leaving experts to determine how the virus affects the brain.
- Space
Stars made of antimatter could lurk in the Milky Way
Fourteen celestial sources of gamma rays provide preliminary hints of matter colliding with “antistars” in our galaxy.
- Animals
This praying mantis inflates a strange pheromone gland to lure mates
Researchers stumbled across a first among mantises: an inflatable organ that spreads pheromones, helping mates find each other in the dark rainforest.
- Health & Medicine
FDA and CDC OK resuming J&J COVID-19 shots paused over rare clot concerns
The single-dose vaccine carries a low risk of rare blood clots in women under 50, but experts say its benefits outweigh that risk.
- Planetary Science
NASA’s Perseverance rover split CO2 to make breathable air on Mars
An oxygen-making experiment on Perseverance shows that astronauts will one day be able to make air to breathe and, better yet, rocket fuel.
- Health & Medicine
Experts predict U.S. COVID-19 cases will dip in summer but surge in winter
Masks, vaccines and coronavirus variants could all affect how bad a predicted winter surge gets.
- Astronomy
Mysterious ‘yellowballs’ littering the Milky Way are clusters of newborn stars
The first comprehensive analysis of the celestial specks indicates they are clusters of infant stars of various masses.
- Physics
X-ray scans explain how the ‘Brazil nut effect’ works
X-ray CT scans of a box of mixed nuts explain the orientations that let large, oblong Brazil nuts rise to the top.
- Space
Fast radio bursts could help solve the mystery of the universe’s expansion
Astronomers used fast radio bursts for the first time to measure the Hubble constant in hopes of ending the debate on the universe’s expansion rate.
